发表时间:2021-08-24
1. From the data, the comprehensive performance of aluminum hydroxide is second only to that of liquid alkali magnesium hydroxide. Aluminum hydroxide also has a certain price advantage, so aluminum hydroxide has cost performance.
2. The flame retardant efficiency of magnesium hydroxide for EVA is higher than that of aluminum hydroxide. With the increase of VA content, its flame retardant effect is more obvious, mainly because magnesium hydroxide can promote the carbonization of EVA, while aluminum hydroxide does not have this effect.
3. Since the theoretical decomposition temperature of aluminum hydroxide is about 230 ℃, in fact, some aluminum hydroxide decomposes at 200 ℃ or even 190 ℃, which is not applicable to the material with high processing temperature requirements.
4. In some materials, the smoke suppression effect of magnesium hydroxide is better than that of aluminum hydroxide.
5. In the process of material processing, if there is a requirement to inhibit acid, due to the weak alkalinity of magnesium hydroxide, its acid inhibition effect is better.